Engineering, 19.07.2019 21:30 Cullen7926
An electric pump at steady state is pumping water out of a pond that is at 2 bar at a rate of 50 kg/s. this water is then delivered at a pressure of 6 bar. the pumps efficiency is 70%, if electricity is 10 cents per kwh, estimate the hourly cost to run this pump. there is no heat transfer and change in kinetic and potential energy can be ignored.
Answers: 2
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
Engineering, 04.07.2019 18:10
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
Answers: 1
Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
Engineering, 04.07.2019 18:10
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
An electric pump at steady state is pumping water out of a pond that is at 2 bar at a rate of 50 kg/...
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